<https://www.sotozen-net.or.jp/column/20181205_2.html/attachment/20181205_2-5#listItem>
<http://schema.org/previousItem>
"https://www.sotozen-net.or.jp/#listItem"
<https://www.sotozen-net.or.jp/column/20181205_2.html/attachment/20181205_2-5>